Boston return home with another opportunity to clinch the NBA Finals after missing out on the series sweep on Friday night.
The Celtics began the series with 107-89 and 105-98 home wins over Dallas, and then won 106-99 on the road to give themselves the chance to clinch in Dallas.
They passed up on that chance, losing 122-84, but they will now have the chance to do it in front of the home fans in Game 5.
Boston, who put together a league-best 64-18 record during the regular season, split the first two games of their first-round series with Miami, but that Game 2 loss has proven to be a rarity.
The Celtics’ rebounded with a couple of blowout wins over the Heat on the road, and then returned home to wrap up the series with a 118-84 win.
They then split the first two games of the series with Cleveland, but just like in the first round they responded to an early loss with three consecutive victories.
Boston beat the Cavaliers 106-93, 109-102 and 113-98 to advance to the Eastern Conference Finals, where they met Indiana.
The Celtics made light work of the Pacers too as they swept them in four games, sealing a place in the NBA Finals with 133-128 (OT), 126-110, 114-111 and 105-102 victories.